/* Base styles */
html { scroll-behavior: smooth; }

/* Theme tokens (easy to tweak palette) */
:root {
  --bg-start: #eef6ff;
  --bg-mid: #f7fbff;
  --bg-end: #ffffff;
  --primary: #0ea5a4; /* accent (teal) - change this to try other looks */
  --primary-600: #0b948f;
  --muted: #6b7280;
  --nav-bg: rgba(255,255,255,0.72);
  --nav-border: rgba(15, 23, 42, 0.06);
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(180deg, var(--bg-start) 0%, var(--bg-mid) 60%, var(--bg-end) 100%);
  background-attachment: fixed;
  background-size: cover;
  transition: background 0.3s, color 0.3s;
}

/* Subtle light spots and texture overlay to give depth */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  /* Layered soft highlights + very subtle repeating pattern */
  background-image:
    radial-gradient(circle at 10% 15%, rgba(255,255,255,0.6), rgba(255,255,255,0) 18%),
    radial-gradient(circle at 90% 85%, rgba(255,255,255,0.35), rgba(255,255,255,0) 20%),
    repeating-linear-gradient(45deg, rgba(0,0,0,0.02) 0 1px, rgba(0,0,0,0) 1px 10px);
  mix-blend-mode: overlay;
  opacity: 0.85;
  z-index: -1; /* keep it behind the page content */
}

/* Respect users who prefer reduced motion or simpler visuals */
@media (prefers-reduced-motion: reduce) {
  body::before { opacity: 0.7; }
}
a { text-decoration: none; color: inherit; }

/* Headings */
h1 {
  font-size: 2.5rem;
  margin: 0.67em 0;
  font-weight: bold;
}

h2 {
  font-size: 2rem;
  margin: 0.83em 0;
}

h3 {
  font-size: 1.5rem;
  margin: 1em 0;
}